PbSO_4/PbO_2转化过程的旋转环盘电极

Rotating Ring-Disc Electrode Study of the PbSO_4/PbO_2 Transformation Process

本文采用旋转环盘电极方法,结合循环伏安和电位阶跃方法,研究了PbSO_4氧化为PbO_2过程机理。实验结果表明:上述转化过程在盘电极表面的固相膜内部进行,环电流响应的产生来源于盘电极上形成的PbO_2的溶解。

The mechanism of the oxidation process of PbSO4 to PbO2 was investigated with the rotating ring-disc electrode (RRDE) method, together with cyclic voltammetry and potential-step methods. The experimental results showed that the oxidation process proceeded within the solidic film forming on the disc electrode surface. The ring current response during the process was due to the dissolution of PbO2 formed at the disc electrode.